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0.32ct Tourmaline (Round, 4.45×4.45mm, Green) vs 0.3ct Sapphire (Round, 4×4mm, Green)


Quick summary: When looked from above (face-up position), 0.32ct Tourmaline (4.45×4.45mm, round cut) appears 24% larger than 0.3ct Sapphire (4×4mm, round cut). See below how they compare side-by-side on a ring and finger.

0.32ct Tourmaline (round cut)
vs
 0.3ct Sapphire (round cut)
green
 
green
4.45×4.45 mm 4×4 mm
actual size
Actual size of 0.32ct Tourmaline (round cut, 4.45×4.45mm, Green color)   Actual size of 0.3ct Sapphire (round cut, 4×4mm, Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Green 0.32ct Tourmaline (round cut, 4.45×4.45mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 0.3ct Sapphire (round cut, 4×4mm) on a right ring and finger
Your settings
Ring
 Gold
Skin tone
 Light
Ring diameter
 16.9 mm
Ring width
 3.0 mm
Finger length
 64 mm
Finger coverage
 27% vs 24%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.32ct Tourmaline Round (4.45×4.45mm, Green) and 0.3ct Sapphire Round (4×4mm, Green) as they would appear on a ring and finger. Adjust the ring and finger size to get an idea of how these gemstones would look on your finger.

Where to buy?

For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile

Face-up Size

All things being equal, Sapphire will face-up smaller than Tourmaline for a given carat weight, because it has higher specific gravity (4 vs. 3.06 - this means it's "heavier" compared to Tourmaline of the same size). Face-up size also depends heavily on the proportions of the cut.

Face-up area is a measure of the size of the gem when viewed from above (as set in a ring). It tells you how big the gem is at the girdle plane.


0.32 Ct Tourmaline (Round) 0.3 Ct Sapphire (Round)
4.45×4.45 mm vs 4×4 mm
15.55 mm²   12.57 mm²
Face-up size outline for 0.32ct Tourmaline (4.45×4.45mm, round cut)
Face-up size outline for 0.3ct Sapphire (4×4mm, round cut)
0.32ct Tourmaline Round (4.45×4.45mm)
0.3ct Sapphire Round (4×4mm)
Difference: 24% (2.98 mm²)
0.32ct Tourmaline (Round, 4.45×4.45mm) has approx. 24% more face-up area than 0.3ct Sapphire (Round, 4×4mm).


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